Fluke 725Ex - Page 33

Using Measure Mode
23
Table 5. Thermocouple Types Accepted
Positive Lead (H)
Color
Type Positive Lead
Material
ANSI* IEC**
Negative Lead
Material
Specified Range
(°C)
E Chromel Purple Violet Constantan -200 to 950
N Ni-Cr-Si Orange Pink Ni-Si-Mg -200 to 1300
J Iron White Black Constantan -200 to 1200
K Chromel Yellow Green Alumel -200 to 1370
T Copper Blue Brown Constantan -200 to 400
B Platinum (30 % Rhodium) Gray Platinum (6 % Rhodium) 600 to 1800
R Platinum (13 % Rhodium) Black Orange Platinum -20 to 1750
S Platinum (10 % Rhodium) Black Orange Platinum -20 to 1750
L Iron Constantan -200 to 900
U Copper Constantan -200 to 400
GOST
XK 90.5 % Ni + 9.5 % Cr
Violet or Black
56 % Cu + 44 % Ni -200 to 800
BP 95 % W + 5 % Re Red or Pink 80 % W + 20 % Re 0 to 2500
*American National Standards Institute (ANSI) device negative lead (L) is always red.
**International Electrotechnical Commission (IEC) device negative lead (L) is always white.